A na-eji ihe eji akpụkpọ anụ PU mee ihe na-ejide eriri ikuku ikuku, na onye na-ejide pen nwere ihe eji eme ihe atọ: chaja ikuku, igbe nchekwa, ekwentị mkpanaaka, wdg. Igbe nchekwa nwere ike ijide pensụl, mkpakọ, teepu nwere akụkụ abụọ. , pensụl, wdg. Ihe ndabere nke ekwentị mkpanaaka anaghị amị amị, ọ dịghịkwa mfe ịpụpụ mgbe ị na-etinye ekwentị mkpanaaka.Igbe nchekwa akpụkpọ anụ na-abịa na akara ngosi LED, anyị na-enye ọrụ akara ngosi ikanam omenala iji mee ka ika gị na-enwu.